Finding the Fourth Proportional to 3,643,459.06, 5,028,416.85 and 2,115,566.23
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Solution
The fourth proportional to 3,643,459.06, 5,028,416.85 and 2,115,566.23 is: 2,919,738.83
Step by Step Solution
- Step 1: Write the proportion equation
3,643,459.06 : 5,028,416.85 = 2,115,566.23 : x - Step 2: Convert to fraction form
3,643,459.06/5,028,416.85 = 2,115,566.23/x - Step 3: Cross multiply
3,643,459.06x = 5,028,416.85 × 2,115,566.23 - Step 4: Simplify right side
3,643,459.06x = 10,637,948,878,222.97 - Step 5: Solve for x
x = 10,637,948,878,222.97/3,643,459.06 - Step 6: Final answer
x = 2,919,738.83
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.